O'Reilly: Is Perl Relevant Any Longer?

With the emergence of.NET, J2EE, Python, PHP, et. al, has Perl lost its niche as a scripting glue language? The buzz is all around PHP these days and also around Python. The complaints about Perl 6's complexity are only getting louder. Besides, Perl does not occupy the central position in O'Reilly's offerings that it once did.